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| Eloy, Lidiane Raquel; Universidade Federal de Santa Maria; Rocha, Marta Gomes da; Universidade Federal de Santa Maria; Pötter, Luciana; Universidade Federal de Santa Maria; Salvador, Paulo Roberto; Universidade Federal de Santa Maria; Stivanin, Sheila Cristina Bosco; Universidade Federal de Santa Maria; Hampel, Viviane da Silva; Universidade Federal de Santa Maria. |
| The experiment aimed at evaluating leaf biomass flow, intensity and frequency of defoliation of Alexandergrass (Urochloa plantaginea (Link) Hitch) by beef heifers exclusively on pasture or that grazed and received protein salt. A completely randomized experimental design was used with repeated measures over time, two treatments and two area replications, with three Angus test heifers by paddock. Leaf blade intake flow is 18% superior for heifers exclusively on pasture. Grazing intensity (59.8%) is similar when heifers receive protein salt or not. Heifers receiving protein salt reduce by one day the defoliation frequency of tillers. The supply of protein salt for beef heifers grazing Alexandergrass affects the herbivore-plant relationship, decreasing intake... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Defoliation frequency; Defoliation intensity; Morphogenesis; Urochloa plantaginea. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21815 |
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| Graminho, Larissa Arnhold; Rocha, Marta Gomes da; Pötter, Luciana; Rosa, Aline Tatiane Nunes da; Bergoli, Tuani Lopes; Machado, Marcela. |
| This work was carried out in order to generate information on the tillering process and to contribute for the understanding of the defoliation process on Italian ryegrass (Lolium multiflorum Lam.) grazed by lambs under different herbage allowances: 6, 8 and12 kg of dry matter per100 kg of animal live weight per day. The grazing method was intermittent. The experimental design was completely randomized following a repeated measure arrangement, with three treatments and two area replications. The intensity of defoliation is greater at 6 and 9% herbage allowances. The defoliation interval is higher at 12% herbage allowance, intermediate at 9% and lower at 6%. The rates of tiller emergence, survival and death, stability index the tiller population are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zootecnia / Pastagens e forragicultura accumulated thermal sum; Intermittent grazing; Defoliation intensity; Defoliation interval; Lambs; Lolium multiflorum. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24021 |
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| Andrade,Carlos Mauricio Soares de; Garcia,Rasmo; Valentim,Judson Ferreira; Pereira,Odilon Gomes. |
| This study was carried out to evaluate the productivity, utilization and sward structure of a mixed massaigrass (Panicum maximum x P. infestum, cv. Massai) and forage peanut (Arachis pintoi Ac 01) pasture, intermittently stocked at three daily herbage allowance levels (9.0, 14.5 and 18.4% of live weight). In each grazing cycle, dry matter (DM) accumulation rates, defoliation intensity (%), grazing depth (%) and grazed horizon (cm) were evaluated. The structure of massaigrass tussocks was characterized in both dry and rainy seasons by measuring its pre-grazing morphological composition and post-grazing height and density (tussocks/m). Pastures submitted to higher herbage allowance (HA) levels showed higher productivity, but were less efficiently utilized.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachis pintoi; Defoliation intensity; Grazing depth; Legume; Morphological composition; Western Amazon. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000200003 |
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